* [U-Boot] [PATCH] armv8: ls1028a: disable multimedia feature when not supported
@ 2019-09-26 5:38 Yuantian Tang
2019-09-30 8:31 ` Priyanka Jain
0 siblings, 1 reply; 2+ messages in thread
From: Yuantian Tang @ 2019-09-26 5:38 UTC (permalink / raw)
To: u-boot
Ls1028a has 4 personalities: ls1028a, ls1027a, ls1017a and ls1018a.
Both ls1027a and ls1017a personalities are lower functionality version
which doesn't support the multimedia subsystems, like LCD, GPU.
To disable multimedia feature on non-multimedia version, set the status
property to disabled in dts nodes.
Signed-off-by: Tang Yuantian <andy.tang@nxp.com>
---
arch/arm/cpu/armv8/fsl-layerscape/fdt.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
index 19917b207a..ef0e2095a6 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
@@ -401,6 +401,24 @@ void fdt_fixup_remove_jr(void *blob)
}
#endif
+static void fdt_disable_multimedia(void *blob, unsigned int svr)
+{
+ int off;
+
+ if (!((svr >> 10) & 0x1))
+ return;
+
+ /* Disable eDP/LCD node */
+ off = fdt_node_offset_by_compatible(blob, -1, "arm,mali-dp500");
+ if (off != -FDT_ERR_NOTFOUND)
+ fdt_status_disabled(blob, off);
+
+ /* Disable GPU node */
+ off = fdt_node_offset_by_compatible(blob, -1, "fsl,ls1028a-gpu");
+ if (off != -FDT_ERR_NOTFOUND)
+ fdt_status_disabled(blob, off);
+}
+
void ft_cpu_setup(void *blob, bd_t *bd)
{
struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
@@ -462,4 +480,7 @@ void ft_cpu_setup(void *blob, bd_t *bd)
#ifdef CONFIG_HAS_FEATURE_ENHANCED_MSI
fdt_fixup_msi(blob);
#endif
+#ifdef CONFIG_ARCH_LS1028A
+ fdt_disable_multimedia(blob, svr);
+#endif
}
--
2.17.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [U-Boot] [PATCH] armv8: ls1028a: disable multimedia feature when not supported
2019-09-26 5:38 [U-Boot] [PATCH] armv8: ls1028a: disable multimedia feature when not supported Yuantian Tang
@ 2019-09-30 8:31 ` Priyanka Jain
0 siblings, 0 replies; 2+ messages in thread
From: Priyanka Jain @ 2019-09-30 8:31 UTC (permalink / raw)
To: u-boot
>-----Original Message-----
>From: U-Boot <u-boot-bounces@lists.denx.de> On Behalf Of Yuantian Tang
>Sent: Thursday, September 26, 2019 11:09 AM
>To: Prabhakar X <prabhakar.kushwaha@nxp.com>
>Cc: u-boot at lists.denx.de; Andy Tang <andy.tang@nxp.com>
>Subject: [U-Boot] [PATCH] armv8: ls1028a: disable multimedia feature when
>not supported
>
>Ls1028a has 4 personalities: ls1028a, ls1027a, ls1017a and ls1018a.
Please use same case : Ls -> ls
>Both ls1027a and ls1017a personalities are lower functionality version which
>doesn't support the multimedia subsystems, like LCD, GPU.
>
>To disable multimedia feature on non-multimedia version, set the status
>property to disabled in dts nodes.
>
>Signed-off-by: Tang Yuantian <andy.tang@nxp.com>
>---
> arch/arm/cpu/armv8/fsl-layerscape/fdt.c | 21 +++++++++++++++++++++
> 1 file changed, 21 insertions(+)
>
>diff --git a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
>b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
>index 19917b207a..ef0e2095a6 100644
>--- a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
>+++ b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
>@@ -401,6 +401,24 @@ void fdt_fixup_remove_jr(void *blob) } #endif
>
>+static void fdt_disable_multimedia(void *blob, unsigned int svr) {
>+ int off;
>+
>+ if (!((svr >> 10) & 0x1))
>+ return;
>+
Use macros, instead of magic values
>+ /* Disable eDP/LCD node */
>+ off = fdt_node_offset_by_compatible(blob, -1, "arm,mali-dp500");
>+ if (off != -FDT_ERR_NOTFOUND)
>+ fdt_status_disabled(blob, off);
>+
>+ /* Disable GPU node */
>+ off = fdt_node_offset_by_compatible(blob, -1, "fsl,ls1028a-gpu");
>+ if (off != -FDT_ERR_NOTFOUND)
>+ fdt_status_disabled(blob, off);
>+}
>+
> void ft_cpu_setup(void *blob, bd_t *bd) {
> struct ccsr_gur __iomem *gur = (void
>*)(CONFIG_SYS_FSL_GUTS_ADDR); @@ -462,4 +480,7 @@ void
>ft_cpu_setup(void *blob, bd_t *bd) #ifdef
>CONFIG_HAS_FEATURE_ENHANCED_MSI
> fdt_fixup_msi(blob);
> #endif
>+#ifdef CONFIG_ARCH_LS1028A
>+ fdt_disable_multimedia(blob, svr);
>+#endif
> }
>--
>2.17.1
>
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2019-09-26 5:38 [U-Boot] [PATCH] armv8: ls1028a: disable multimedia feature when not supported Yuantian Tang
2019-09-30 8:31 ` Priyanka Jain
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